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Gwar [14]
2 years ago
13

At 25°C, which 5.0 g Zn sample will react the fastest with dilute HCÚ?

Chemistry
1 answer:
makkiz [27]2 years ago
8 0

powdered because it has more surface area which leads means there are more <u>reactant particles exposed to collide</u>, therefore the successful collision rate increases, resulting in an increased rate of reaction.

\sf \boxed{\sf fiery answererft}

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What is the production of H2O2(aq) + 2H+(aq) + 2I–(aq)
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Answer: math is gay

Explanation:

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3 years ago
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if a sample of gas at 25.2 c has a volume of 536mL at 637 torr, what will its volume be if the pressure is increased to 712 torr
nignag [31]
Considering ideal gas:
PV= RTn

T= 25.2°C = 298.2 K

P1= 637 torr = 0.8382 atm

V1= 536 mL = 0.536 L

:. R=0.082 atm.L/K.mol

:. n= (P1V1)/(RT) = ((0.8382 atm) x (0.536 L))/
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:. n= O.0184 mol

Then,
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V2 = RTn/P2 = [(0.082atmL/
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6 0
3 years ago
Explain with example, why there cannot be an oxidation reaction without a corresponding reduction reaction
Vlada [557]
Because matter cannot be created or destroyed
8 0
3 years ago
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Under certain conditions Argon gas diffuses at a rate of 3.2 cm per second under the same conditions an unknown gas diffuses at
kozerog [31]

Answer:

20 g/mol

Explanation:

We can use <em>Graham’s Law of diffusion</em>:

The rate of diffusion (<em>r</em>) of a gas is inversely proportional to the square root of its molar mass (<em>M</em>).

r = \frac{1 }{\sqrt{M}}

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(\frac{r_{2}}{r_{1}})^{2} = \frac{M_{1}}{M_{2}}

Solve for <em>M</em>₂:

M_{2} = M_{1} \times (\frac{r_{1}}{r_{2}})^{2}

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= \text{39.95 g/mol} \times 0.506 = \textbf{20 g/mol}

7 0
3 years ago
Step 3: Measure the Reaction Rate at 40°C
Anit [1.1K]

Answer: Temperature of the water is 40

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